package com.xesj.util;

import java.math.BigDecimal;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import javax.servlet.http.HttpServletRequest;
/**
 * 
* @ClassName: PageData 
* @Description: 参数封装Map 
* @author lee 
* @date 2016年3月30日 下午2:22:46 
*
 */
public class PageData extends HashMap implements Map{
	
	private static final long serialVersionUID = 1L;
	
	Map map = null;
	HttpServletRequest request;
	public PageData(HttpServletRequest request){
		this.request = request;
		Map properties = request.getParameterMap();
		Map returnMap = new HashMap(); 
		Iterator entries = properties.entrySet().iterator(); 
		Map.Entry entry; 
		String name = "";  
		String value = "";  
		while (entries.hasNext()) {
			entry = (Map.Entry) entries.next(); 
			name = (String) entry.getKey(); 
			Object valueObj = entry.getValue(); 
			if(null == valueObj){ 
				value = ""; 
			}else if(valueObj instanceof String[]){ 
				String[] values = (String[])valueObj;
				for(int i=0;i<values.length;i++){ 
					 value = values[i] + ",";
				}
				value = value.substring(0, value.length()-1); 
			}else{
				value = valueObj.toString(); 
			}
			returnMap.put(name, value.trim()); 
		}
		map = returnMap;
	}
	
	public PageData() {
		map = new HashMap();
	}
	
	@Override
	public Object get(Object key) {
		Object obj = null;
		if(map.get(key) instanceof Object[]) {
			Object[] arr = (Object[])map.get(key);
			obj = request == null ? arr:(request.getParameter((String)key) == null ? arr:arr[0]);
		} else {
			obj = map.get(key);
		}
		return obj;
	}
	
	public String getString(Object key) 
	{
		Object obj = get( key );
		if ( obj == null )
		{
			return null;
		}
		else
		{
			return obj.toString();
		}
		//return (String)get(key);
	}
	
	@SuppressWarnings("unchecked")
	@Override
	public Object put(Object key, Object value) {
		return map.put(key, value);
	}
	
	@Override
	public Object remove(Object key) {
		return map.remove(key);
	}

	public void clear() {
		map.clear();
	}

	public boolean containsKey(Object key) {
		// TODO Auto-generated method stub
		return map.containsKey(key);
	}

	public boolean containsValue(Object value) {
		// TODO Auto-generated method stub
		return map.containsValue(value);
	}

	public Set entrySet() {
		// TODO Auto-generated method stub
		return map.entrySet();
	}

	public boolean isEmpty() {
		// TODO Auto-generated method stub
		return map.isEmpty();
	}

	public Set keySet() {
		// TODO Auto-generated method stub
		return map.keySet();
	}

	@SuppressWarnings("unchecked")
	public void putAll(Map t) {
		// TODO Auto-generated method stub
		map.putAll(t);
	}

	public int size() {
		// TODO Auto-generated method stub
		return map.size();
	}

	public Collection values() {
		// TODO Auto-generated method stub
		return map.values();
	}

	/** 
	 * @Title: getDouble 
	 * @Description: 获取double数据
	 * @param key
	 * @return 
	 * @author Du Wince 
	 * @date 2016年6月25日 下午4:21:29 
	 *
	 */
	public double getDouble( String key ) 
	{
		Object obj = get( key );
		if ( obj == null )
		{
			return 0;
		}
		else
		{
			return Double.parseDouble( obj.toString() );
		}
	}

	/** 
	 * @Title: getInt 
	 * @Description: 获取int数据
	 * @param key
	 * @return 
	 * @author Du Wince 
	 * @date 2016年6月25日 下午4:28:30 
	 *
	 */
	public int getInt( String key ) 
	{
		Object obj = get( key );
		if ( obj == null )
		{
			return 0;
		}
		else
		{
			try 
			{
				return new BigDecimal( obj.toString() ).intValue();
			} 
			catch (Exception e) 
			{
				return 0;
			}
		}
	}

	/** 
	* @Title: getBoolean 
	* @Description: TODO(获取Boolean类型值) 
	* @author Du Wince
	* @param key
	* @return
	* @创建时间 2017年2月23日下午4:47:27
	*/
	public boolean getBoolean( String key ) 
	{
		Object obj = get( key );
		if ( obj == null )
		{
			return false;
		}
		else
		{
			
			try 
			{
				boolean flag = (boolean) obj;
				return flag;
			} 
			catch ( Exception e ) 
			{
				return false;
			}
		}
	}
	
}
